Destined Demon Lord from the Start, and You Call This a Good-for-Nothing Son-in-Law?

After pulling an all-nighter, Su Ye transmigrates into a cultivation fantasy world! When he comes to his senses, he realizes he's somehow logged into the game Immortal Abyss ahead of its launch! The game hasn't even opened yet, and he's already become the short-lived husband of Liu Hanyi, the future Empress! The useless young lord who dies after spending a year as a live-in son-in-law! Su Ye is at a loss, but at the crucial moment, he awakens the Demon Venerable System. He begins laying his plans early and becomes the hidden king behind the Nine Heavens! [Congratulations! Your Blood-Clad Army has wiped out the Demon Sect. You have received the Great Dao Sword Bone and an Innate Sacred Body!] [Congratulations! You have successfully married the future Empress. You have received an Immortal's Imperial Scripture and sacred immortal arts!] [Congratulations! You have successfully conquered the Taiji Divine Dynasty. You have received...] My name is Liu Hanyi. I was an Empress in my previous life, but unexpectedly, I was reborn! This time, I'm determined to change the fate of my previous life, eliminate all my enemies, and rule the Nine Heavens! Especially her husband, Su Ye, a pitiful man forced to become a live-in son-in-law against his will. I swore to protect Su Ye in this life, but I never expected my husband in this life to be a complete stranger! “The Blood-Clad Army, feared across the world, was built by you, my husband?!” “The notorious female killer Ji Fei is your maid?!” “And the Nine Heavens Sword God, who cut down an immortal with a single strike, is only your butler?!” The reborn Empress is dumbfounded. You call this useless live-in son-in-law?!